[!CAUTION]

As-of 2021, this product does not have a free support team anymore. If you want this product to be maintained, please support my work.

[!NOTE]

(This product is available under a free and permissive license, but needs financial support to sustain its continued improvements. In addition to maintenance and stability there are many desirable features yet to be added.)

[!TIP]

THIS REPOSITORY IS AUTO-UPDATED BY GITHUB-RELEASE-NOTIFIER (https://github.com/femtopixel/github-release-notifier)

Google Lighthouse - Docker Image ================================

Lighthouse analyzes web apps and web pages, collecting modern performance metrics and insights on developer best practices.

This image is greatly inspired from Justin RIBEIRO's work

Usage

docker run --rm --name lighthouse -it -v /path/to/your/report:/home/chrome/reports femtopixel/google-lighthouse <yoursiteurl> <optional_args>

With <yousiteurl> url to your site (e.g. http://www.google.com). You can pass args AFTER the url if you want to.

For example, you can export as json with this command:

docker run --rm --name lighthouse -it -v /path/to/your/report:/home/chrome/reports femtopixel/google-lighthouse http://www.google.com --output json

You can specify CHROME_FLAGS environment variable (-e parameter in your docker command) to be used in chrome-flags parameter. (default: --headless --disable-gpu --no-sandbox)

Further reading on Google Lighthouse

FAQ

• Error while writing files

Runtime error encountered: { Error: EACCES: permission denied, open '/home/chrome/reports/myawesomesiteadmin_heavypage.report.json'
errno: -13,
code: 'EACCES',
syscall: 'open',
path: '/home/chrome/reports/myawesomesiteadmin_heavypage.report.json' }

If the issue still occurs, you may want to add --disable-shm-dev-usage Chrome flag (cf. https://stackoverflow.com/questions/69173469/meaning-of-selenium-chromeoptions/69175552#69175552 and https://issues.chromium.org/issues/40517415; thx @kevinbreit - https://github.com/femtopixel/docker-google-lighthouse/issues/25)

You can add this flag with the -e flag in your docker command docker run --rm --name lighthouse -it -e CHROME_FLAGS="--headless --disable-gpu --no-sandbox --ignore-certificate-errors --disable-dev-shm-usage --allow-insecure-localhost --silent" -v /path/to/your/report:/home/chrome/reports femtopixel/google-lighthouse http://www.google.com --output json